Artificial lime.



WFHNFHEIML UME.

(Application Bled July 30, X898.)

B Smets-Sheet 2,

(No Mulini.)

FUCHHRD EDWINDHNIELS HIS RTIORN lV S,

MU. 640540. lmmn'ted Balmt 2, i901). R. E. MHELS.

RTl-"HCIAL LIME.

(Application fxlcd July 30, 1898,)

(No Mudal.) H Sl1nuts-$hnt 3.

IVI

(Application flied July 30, 1808.)

NVEN TO Fl 5 HTTRNEV5- No. www@ Patented Jan. 2, i930. R. E. DMMELS.

RTFlElAL UWIB.

(Application mud July 30, 1.998,)

(No Molie.) 8 Sheds-Sheet 5.y

im @il D MM35..

BTWICL MME.

(Application filed July 30, 1898A 8 Sheets-Sham 5.

(No WIMIEI mi HTI'ORNEYS.

Wo. 640,546. Paented Jan. 2, i900 I?. E. DANIELS.'

ARTIFICIAL LIIIIBA {Applcutlun filed July 3() inw-I.'

8 Sheets-Sheet 7 MEN-VOR if RmHnRn EDWIN DHNIELQ ima ATTORNEYS.

Patented lam. '2, mt E. E. DMMLS.

Mwwimm.' um.

(Application lled July 30, 1608.)

(ma Madam Fmr/6.

Fla-l5.

NVENTOH RIHHRD EDWIN D'WHELJQS Uw@ M@ www.)

HIS HTTO RNEYS I may in some cases connect the thigh to the4 rear orheel part of the foot (say the cap c) by a spring and strap, as dottedat Fig. 2, and dispense with the back strap g of the knee joint.

The sp1-in gs (/X tX Work withinthe metal loop i or strap g2 h2,respectively, and an adjustable sliding bridge-piece g3 h3, preferablymade of leather, regulates the strength or resistance. of the spring gor hX.A A similar leather piece g4 7L, Fig. 4, lines the end of themetal loop,

and in the case of the rear spring g3 a collar g5 and leather or otherbuffer g6 are ixed on the central spindle to limit the action of thespring, or a rubber buer may be used instead of a metal spring, as seenat (/XX, Fig. 5,

The studs or pins a and d, forming the pivot and stop of the anklejoint,may be somewhat barrel-shaped or made with globular enlargement at thecenter, as shown detached at Figs. 6 and` 6, to allow lateral anddiagonal flexion, as Well as the ordinary forward flexion, of theankle-joint in case the foot e is pressed down on a small stone oruneven surface. In some cases 'the anklejoint pin a and stop-pin d maybe fixed to the foot e, as seen at Fig. 3b, the

\ springs g hx'heing reversed and passing into a cavity in the foot eand the bearing c c.' c2 being fixed to the side irons of the shank.This Fig. 3" shows the side ironand the plate c combined in one piece,and in some cases Where'there isno room for the springs g 71, and theiradjuncts above the foot (in the case of Very low` amputation) l use onecentral spring-link hXX, Fig. 2, in a cavity in the front of the footand a lever tx, pivoted to the stoppind. This lever rests on thejoint-pin a and Works around it when the anklejoint is bent until' theend of the lever is stopped by a projection eX on the plate c or foot e,and further motion is checked by the spring hXX, which bears against theunder side of the projection e, and this cheeks the joint just beforethe" stop-pin d comes into contact with the bean ing c. In all easesthese springs g hX hXX act `as eornpressonsprings and are alreadycompressed to resist the extension of check straps or links which holdthe joint in place, and this takes a great strain oit the joint-pins andy bearing-plates.

The front part of the foot e, Whether in the` form of a wooden block orshell-piece of aluminium or otherwise formed, is shorter than usual andinclined upward at e from the ball ot' the foot toward the front orpoint, and this part of the foot is inclosed in an inflated aix cushion7c., forming the toe of the foot The foot e is preferably covered witha-ruhber cap c2, which protects the saine and also insures an air-tightjoint with the pneuniatiel pneumatic case is at both toe and heel l havea pneumatic footV 7s with a Wooden or other core e therein, and therewill be no sharp angle bearing upon the cushion and' likely to wear thesaine.

kx is the initiating-tube for the cushion..

The heelot' the foot e is mortised or groqved, as seen at Fig. 3, and ablock of rubber e' (see also Figs. l, 2, 3, 3, 4, and 7) is let into thegroove or mortise to form an elastic cushion for the heel, the. grooveih- Which is tapered inward to fit the taper of the dovetailed part ofthe block e. (Shown at Fig. 3f.) The upper part ot' the foot is hallowedout for the bearing and to allow free play ot the foot e, the bottom ofthe shank tting into the foot. (See Figs. 1, 2, and The shank is formedof the side irons Zi, before named, and at oertain parts is made withside projections li er extensions in Width, to which bands or halbandsof metal l, Fig. l, may be riveted at ZX to complete a frame upon whichcanvas or other suitable material may be stretched or built 'to form theleg. These projecting parts b', may alsobe made with upwardly-extend ingpoints or lingers b, upon which the easing may be suspended by suitablesockets or pockets, or Wooden shell-pieees may be used or other partslor sections forming the shape' ot' a natural limb. The extensions oallow of the riveting ot' parts to the side irons l) without weakeningthe latter, which have really to support the weight put on the leg orfoot,

IOC)

and the points b2 allow for readily removing the casin g to get at theinclosed Working parts for adjustment or repair. The side irons?) arejointed to extensions or further `side irons b3 on the thigh-cover forthigh-pieee, and the irons b3 are providedwith a stop b4, the upper endof the shank side irons .7i being provided with a cam-shaped piece b5to` prevent the knee-joint thus formed from bending in- IIOward-thatis,backward-onitspi'votl. (See y (seen dotachedat Fig. l0,) andalong the other edge with a removable lisp or tongue n2, having holesit, into which the hooks enbetween the projections b'.

esatto gage. This dispenses with the usual lacing, which is a tediousoperation. The inner upper edge of the thigh-coverf is provided with apulley o and guides o', Fig. Il, under which a suspending-cord p ispassed, and this cord p is attached to straps or bands or webbing q,connected to a yoke, preferably of webbing o', provided with a loop q2,through which is passed the arm and shoulder at the side of the bodyopposite to the artificial limb, one of the straps q passing over thesecond shoulder. (Sec l2.) The two straps q, connected to the same yokeq, are passed also at liront and baclr of the second shoulder andconnected together at their lower end, where they are attached to aspring-buckle g4, pivoted at g5 to the outer side of thethigircoverf.This forms a if'ery easy-itiing efficient snpport for the artificiallimb, which is thus hung directly from the shoulder immediately aboveit, and the raising, of the limb by this shoulder is quite natural whenwalking. In the case of amputation of both legs q2 might be dispensedwith.

The side irons Z) and b3 may be made hollow or tubular, and those of theshank may bc made in parts, so as to be adjustable in length, ifdesired. This is effected, as seen at tig. 2, the two parts beingconnected together by a plate h6, which can be replaced by a longerplate h6, (seen detached at Fig. 22",) if desired. The side irons h3 aremade with a series of rivet-holes b3, so that they can be let down uponthe cover f, as seen at Fig. if), to lengthen the thigh, if desired.rlhose of the shank are so arranged also as to carry more weight at theback of the kneejoint pin than at the front, and thus they will swing,rforward automatically at every step in walking'.

I propose to fasten a strip or strips of lcatherj"i around the top ofthe rear part of the thigli-coyerfto strengthen the saine.

The bnelrle i', which I vhave invented for the suspension of thelimb,(or for other parts requiring such a buckle,) is made with the prong orprongs i" in one part with the' frame (see Figs. lb and lll) and, ifdesired, in one with a spring' r9, holding it or them to the frame r.

For a spring-brittle, seen at Figs. l2, l5, and l5, I lit a spring saround each prong v" or around all the prongs r', Fig. I7, bearingTagainst the crossbar r2 and against a looped strap r, through which theprongs pass and which is connected to one of the ends or parts "to bejoined by the buckle, the frame frbeing Afastened, as usual, by theprongs 1" to the other end or part, that the weight oi" the limb issuspended on. the springs .v

I sew the cover ff of the limb to both sides of the side irons, Aas seenat Fig. l, and I pro tent the` stitching by stripsofleather i', placedThis prevents the irons from working up and down and allows the coversupported by the stitching.

to be in some cases entirely I claim as my invention;-

l. A joint for ankle or knee consisting of a pivot-pin and a stop-pinsecured to one part and a bearing-block of soit material secured bysuitable plates and bolts to the other part, substantially as described.

2. A joint for ankle or knee consisting," ot' a pivot-pin stop-pin,bearing-block of soft materialand securingplate a spring connectionbeingsnade between the front of the bearingr block and a point on theshank and a checkstrap between the two parts jointed togethersubstantially as hereinbefore described.

A joint for ankle or knee consisting of a pivot-pin, stop-pin andbearing-bloeit ot soft material, and securing-plate, 'a spring connection being1 made between lthe front ci" the bearing-block and a pointon the shank anda spring check-strap between the two parts jointedtogether substantially as hereinbefore described.

'l. In an ankle-joint of the above description. an ankle-joint pin madelarger at the central part to allow lateral and diagonal. exions oli'the ankle-joint, substantially as hereinbefore described.

5. A knce-joint with cam-piece on the shank sido iron and reversiblestop-plate on the thigh side iron, substantially as hereinbci'oredescribed.

G. ./"i knee-joint with front spring conoce'- tion and back checl-:strapconneetiom'as and for the purposes sot forth.

' 7. '.lhe side irons of 'an artificial leg made with side enlargementsand bands secrcd to said enlargements to which a casing; is at tached,as and for the purposes described.

8. Side irons for an artificial ieg made with side enlargements havingvertical pegs, and a casingadapted to be hung thereon, snbstaniially asdescribed.

9. A pneumatic Yfoot having a wooden core part extending from the liceiforwardly toward the toe, covered with a flexible inatorial vulcanizedthereto around the anlrlc or instep, said covering.;` extendingl beyondthe front ofthe core and forming' an aiiiamber at the toe, as and forthe purposes .t forth.

l0. An artificial limb provided with means for suspending it, consistingol' straps adapt` ed to pass over one shoulder and secured to the limb,and a yoke secured to said straps and adapted to pass over the othershoulder, substantially as described.

ll. An artificial limb, provided "with means for sus iondine' it,consistinfr ol' straf s ada tn :1

ed to pass over the shoulder, a pulley and a spring secured to the limband to the straps,

snbstfirntially as described.

in testimony whereof l have signed my name to this specification iu thepresence ol' two sun.fniribirrgr witnesses.

RICHARD ll. I'JNilillli. Wi tn csses CHARLES n Davies, JNO. 'ilumine'.

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